Re-Entrainment of Building Exhaust by Packaged HVAC Economizers

Project Objectives
•Measure the extent of building exhaust re-entrainment under a variety of operating and installation conditions
•Verify the applicability of existing equations contained in Chapter 44 of the 2003 ASHRAE HVAC Applications Handbook, and to suggest refinements as needed
•Assess the applicability of relatively simple CFD models to predict re-entrainment and serve as a cost-effective tool for generating design and installation guidelines.